کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6688457 501886 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An experimental study on the negative effects of downwards flow of the melted frost over a multi-circuit outdoor coil in an air source heat pump during reverse cycle defrosting
ترجمه فارسی عنوان
یک مطالعه تجربی در مورد اثرات منفی جریان پایین جریان یخ ذوب بر یک سیم پیچ چند منظوره در یک پمپ حرارتی منبع حرارت در طی یخ زدایی معکوس
کلمات کلیدی
آزمایشی پمپ حرارتی منبع حرارت، خنثی کردن، سرما افتاده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
When the surface temperature of the outdoor coil in an air source heat pump (ASHP) unit is lower than both freezing point of water and the air dew point, frost can be formed and accumulated over outdoor coil surface. Frosting affects the energy efficiency, and periodic defrosting therefore is necessary. Reverse cycle defrosting is currently the most widely used defrosting method. A previous related study has indicated that during reverse cycle defrosting, downwards flow of the melted frost over a multi-circuit outdoor coil could affect the defrosting performance, without however giving detailed quantitative analysis of the effects. Therefore an experimental study on the effects has been carried out and a quantitative analysis conducted using the experimental data. In this paper, the detailed description of an experimental ASHP unit which was specifically built up is firstly reported. This is followed by presenting experimental results. Result analysis and conclusions are finally given.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 138, 15 January 2015, Pages 598-604
نویسندگان
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